Water tank overflow liquid level sensor alarm circuit is a simple electronics project for school students. It produces a beep sound when the water tank is completely filled by water. The advantage of this project circuit is that it saves water from accidental over flow. So this circuit always prevents the wastage of water when you forget to switch OFF the motor pump set after switch ON.
- This is miniproject for schools
- Liquid level sensor
- When tank is full buzzer will ON
- Wire as sensor
- 9v Battery